import tkinter
top = tkinter.Tk()
top.title("课程展示")
top.geometry("600x600")
label = tkinter.Label(top, text="付老师课堂")
label.pack()
button1 = tkinter.Button(top, text="上课")
button1.pack(side=tkinter.LEFT)
button3 = tkinter.Button(top, text="下课")
button3.pack(side=tkinter.RIGHT)
top.mainloop()